Automation System
What is the difference between integral and derivative control?

integral control has slower response to an error signal.
None of these
derivative control does not eliminate offset error
All of these
derivative control responds to a change in the rate of change in the error signal

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Automation System
A common data base is one requisite for converting CAD and CAM to CIM. Another is that:

the system must make provision for new techniques.
technical assistance must be provided to the user.
None of these
the user must have access to both hardware and software
there should be a common 3-D part description system.

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Automation System
What is offset error?

All of these
the difference between the control setpoint value and the actual value.
the difference between the sensor input and the absolute sensed parameter.
None of these
the difference between the controller output and the setting of the manipulated variable.

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